[经] certificate for advance surrender of export exchange

yù jiǎo wài huì zhèng míng shū ㄩˋ ㄐㄧㄠˇ ㄨㄞˋ ㄏㄨㄟˋ ㄓㄥˋ ㄇㄧㄥˊ ㄕㄨ